tests/kernel/kqueue/t_proc3.c

   1 /* $NetBSD: t_proc3.c,v 1.1 2012/11/17 21:55:24 joerg Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Joerg Sonnenberger.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __RCSID("$NetBSD: t_proc3.c,v 1.1 2012/11/17 21:55:24 joerg Exp $");
  34
  35 #include <sys/event.h>
  36 #include <sys/time.h>
  37 #include <sys/types.h>
  38 #include <sys/wait.h>
  39
  40 #include <err.h>
  41 #include <pwd.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <unistd.h>
  45
  46 #include <atf-c.h>
  47
  48 #include "../../h_macros.h"
  49
  50 ATF_TC(proc3);
  51 ATF_TC_HEAD(proc3, tc)
  52 {
  53         atf_tc_set_md_var(tc, "descr",
  54             "Checks EVFILT_PROC for NOTE_TRACK on self bug ");
  55 }
  56
  57 ATF_TC_BODY(proc3, tc)
  58 {
  59         pid_t pid = 0;
  60         int kq, status;
  61         struct kevent ke;
  62         struct timespec timeout;
  63
  64         RL(kq = kqueue());
  65
  66         EV_SET(&ke, getpid(), EVFILT_PROC, EV_ADD, NOTE_TRACK, 0, 0);
  67
  68         RL(kevent(kq, &ke, 1, NULL, 0, NULL));
  69
  70         RL(pid = fork());
  71         if (pid == 0) {
  72                 _exit(EXIT_SUCCESS);
  73                 /* NOTREACHED */
  74         }
  75
  76         RL(waitpid(pid, &status, 0));
  77         ATF_REQUIRE(WIFEXITED(status));
  78         ATF_REQUIRE_EQ(WEXITSTATUS(status), EXIT_SUCCESS);
  79
  80         timeout.tv_sec = 0;
  81         timeout.tv_nsec = 0;
  82         ke.ident = 0;
  83         ke.fflags = 0;
  84         ke.flags = EV_ENABLE;
  85
  86         RL(kevent(kq, NULL, 0, &ke, 1, &timeout));
  87         RL(close(kq));
  88
  89         ATF_REQUIRE(ke.fflags & NOTE_CHILD);
  90         ATF_REQUIRE((ke.fflags & NOTE_TRACKERR) == 0);
  91         ATF_REQUIRE_EQ((pid_t)ke.ident, pid);
  92 }
  93
  94 ATF_TP_ADD_TCS(tp)
  95 {
  96         ATF_TP_ADD_TC(tp, proc3);
  97
  98         return atf_no_error();
  99 }